Auxiliary air-inlet device for internal-combustion engines.



H. B. JOHNSON.

AUXILIARY AIR INLET DEVICE FOR INTERNAL GOMBUSTION ENGINES.

APPLICATION FILED MAR. 9, 1914.

1,102,053, 7 PatentedJune 30,1914

2 SHEETS-SHEET 1.

anwwm Henry .B. efohnsow /vH/neoow [2 H. B. JOHNSON.

AUXILIARY AIR INLET DEVICE FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED MAB. 9, 1914.

Patented June 30,1914,

2 SHBETS8HEET Z.

1 if him 7 A I3 28 l0 9 gmnmm lienr .B. Johnaon WMZMQA (7 STATES PATENT OFFICE.

HENRY B. JOHNSON, ,OF PHILADELPHIA, PENNSYLVANIA.

AUXILIARY AIR-INLET DEVICE FOR INTERNAL-COMBUSTION ENGINES.

To all whom it may concern:

Be it known that I, HENRY B. JOHNSON, a citizen of the United .States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvanla, have invented certain .new and useful Improvements in Auxiliary Air-Inlet Devices .for Internal- Combustion Engines, of which the following is a specification.

My invention relates to improvements in -auxiliary air inlet devices for internal combustion engines, the object of the invention being to provide improved means for supplyingheated air to the gas in its passage from the carbureter to the engine and evenly distribute the air and prevent any globules from passing to the engine.

A further object is to provide improvements o'f this character which'may be attached to any ,ordinary engine Without injurapg voraltering the engine in the slightest.

1th these and other objects in view, the

invention consists in eertain novel features of construct on and ,com'binatwns and ar-' rangernents of parts as will be more fully hereinacliter described and pointed out in thec'laims. i

In the accompanying drawings: Figure 1 i s a yiew in elevation illustrating my improvements .in connection with an internal combustionengine. Fig. 2 is a viewin cross section thrmlgh the manifold intake on the ,line 2'-2 of Fig. i Fi 3 is a view in transverse Section on the "ine 33 of Fig. F s i a ragm a y view lon tudinal section on the line f1- 4 of Fig. 2. F ig. 5 is a view in elevationillustrating my impliovements as an attachment independent of the intake and clamped between the intake and the carbureter. Fig. 6 is a perspective view of the attachment shown in Fig. 5. Fig. 7 is a view in longitudinal section on the line 7-7 of F ig..6, and Figs. 8.and-9 are viewssimi'lar to Figs. 6 and 7 illustrating another modification. v

1 represents an internal combustion engine having a nianifo'ld intake 2 and the manifold exhaust -3.

4 is an ord'nary carburetor to which the manifold intake is secured by bolts 5 which Specification of Letters Patent.

Patented June 30, 191 4.

Application filed March 9, 1914. Serial No. 823,604.

project through ears 6 on the carbureter, and laterally projecting extensions 7 on the intake.

The manifold intake comprises a casting having an integral enlargement 8 at its entrance end which enlargement is formed with an opening therethrough for the passage of gas. This opening is of three different diameters. The smallest diameter located a distance from the end of the intake constitutes an internal annular shoulder indicated by the referencenumeral 9, against which a Wire screen 10 is securely clamped by a ring 11.

The ring 11 is externally screw-threaded and engages internal screw-threads 12 in the opening 8. This screw-threaded portion 12 constitutes the next larger diameter of the opening, while the largest internal diameter of the. opening is formed between the screw-threaded portion 12 and the shoul der 11 which is preferably formed by cutting an annular groove '13 to provide an annular air chamber 14 around the outside of ring 11, the latter having a circular series of perforations 15 through which the air escapes into the gas. The air is supplied to the chamber 14- through a passage 17 communicating with an internally screw-threaded inlet 16 formed on one of the extensions 7 of enlargement 8. The inlet 16 is connected to a valve 18, and the latter is connected by a flexible ipe connection 19 with an air heater 20. 'T e valve 18 has an arm" that the valve may be readily operated to control the admission of air. The air heater 20 forms the subject matter of a separate application executed on even date herewith,

and hence need not bedescribed in detail except to say that it serves to heat the air entering at the point .25, and before it enters .thepipe 15 sothat the air in the highly heatedcondition is supplied to the gas.

" In Figs/5,3, and 7, I illustrate'a modiiication n which the air distributor comprises anattachment which is clamped betweenthe intake pipe and the carburetor by means ofthe bolts 5. In this form of my I ment, and hence I have given like parts the same reference numerals the same.

In the modification illustrated in Fig. 8, the body portion 28 is circular, and the inlet 29 is at one edge and externally screwthreaded, but in other respects the construcbecause they are tion is precisely the same as that above described.

In all forms of the invention, the opening or passage is of three distinct diameters to provide a flange or ledge against which the screen is clamped by the ring, and provide around the ring an annular air chamber which discharges the air through perforations in the ring adjacent the screen.

With all forms of my improvement, air in a highly heated condition commingling with the gas adjacent the screen insures a highly combustible mixture free from all globules of liquid, and by reason of the construction the air is supplied uniformly to the entire area of gas, so that a uniform mixture is had.

Various other slight changes might be made in the general form and arrangement of parts described without departing from my invention, and hence I do not limit myself to the precise detais set forth, but consider myself at liberty to make such changes and alterations as fairly fall within the spirit and scope of the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. An auxiliary air inlet for internal combustion engines, comprising a body having an opening therethrough, said body having an annular air chamber formed in the wall of said opening, said body having an air inlet communicating with the annular air chamber, an annular shoulder formed in the wall of said opening at one side of the air chamber and having va smaller diameter than the wall of the opening at the other side of the chamber, a screen located against the shoulder, and a ring fitting the said 0 ening and clamping the screen against the s ouldcr, said screen havin a circular series ofperforations communicating with the chamber, substantially as described.

2, An auxiliary air inlet for internal combustion engines, comprising a body having an opening therethrough, said body having an annular air chamber formed in the wall of said opening, said body having an air inlet communicating with the annular air chamber, an annular shoulder formed in the wall of said opening at one side of the air chamber and having a smaller diameter than the wall of the opening at the other side of the chamber, a screen located against the shoulder, and an externally screwthreaded ring engaging screw-threads in the said openin and clamping the screen against the shoulder, said ring having a circular series of perforations communicating with the chamber, Substantially as described.-

3. An auxiliary air inlet for internal combustion englnes, comprising a body having an opening therethrough, said body having an annular air chamber formed in the wall of said opening, said body having an air inlet communicating with the annular air chamber, an annular shoulder formed in the wall of said opening at one side of the air chamber and having a smaller diameter than the wall of the opening at the other side of the chamber, a screen located against the shoulder, a ring fitting the said opening and clamping the screen against the shoulder, said screen having a circular series of perforations communicating with the chamber, said body adapted to be positioned between the carbureter and intake of an internal combustion engine, and having bolt receiving openings at opposite sides of said first-mentioned opening, substantially as described.

4. The combination with an intake pipe having an extended body ortion at its intake end, said body having an opening therethrough, and at one side of the body havin an internal annular flange forming a shoul er in the opening, said opening having its wall adjacent one side of the body screw-threaded, a screen located against the inner face of the flange, an externally screwthreaded ring engaging the threads in the opening and clam ing the screen against the flange, said body 1n the wall of the opening having an annular gIOOWE back of the ring, the walls of said openin in the ring constituting an annular air ghamber, said ring having perforations communicating with the chamber, and said body having an air inlet directing air into the chamber, substantially as described.

5. The combination with an intake pipe having an extended body portion at its intake end, said body having an opening therethrough, and at one side of the body having an internal annular flange forming a shoulder in the opening, said opening having its wall adjacent one side of the body screw-threaded, a screen located a ainst the inner face of the flange, an externa 1y screwthreaded ring engaging the threads in the opening and clamping the screen against the flange, said body-in the wall of the opening having an annular groove back of the ring, the walls of said opening in the ring constituting an annular air chamber, said rin having perforations communicating wit the chamber, said body havin a lateral extension with a passage theret hrough communicating with the chamber, and an air supply pipe communicating with said passage, substantially as described.

In testimony whereof I have sigi'ned my name to this specification in the presence of two subscribing witnesses.

HENRY B. JOHNSON. Witnesses:

M. E. DITTUS, CHAS. E. Po'r'rs. 

